SDO HMI 2011-02-12 16:58:57 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing)
(It is recommended to set high resolution on your display!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.40 | 33.51 | 1.27 | 17.79 | -20.33 | 69.00 | 15.99 | 226.09 | 0.3573 | -124.7 | 198.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-12 16:58:57 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.81 | 0.00 | 4.74 | -20.26 | 72.22 | 19.20 | 232.05 | 0.3930 | 420.0 | 811.0 | |
| 0.00 | 1.28 | 0.00 | 0.69 | -20.63 | 72.10 | 19.09 | 231.11 | 0.3949 | 821.0 | 687.3 | |
| 0.00 | 2.14 | 0.00 | 1.15 | -20.07 | 71.43 | 18.42 | 231.38 | 0.3814 | 771.0 | 601.1 | |
| 0.00 | 0.68 | 0.00 | 0.37 | -19.87 | 71.21 | 18.19 | 231.52 | 0.3767 | 624.0 | 362.1 | |
| 0.00 | 2.82 | 0.00 | 1.51 | -20.25 | 70.62 | 17.61 | 229.83 | 0.3730 | 801.0 | 425.2 | |
| 2.40 | 8.13 | 1.27 | 4.32 | -20.08 | 70.27 | 17.26 | 229.68 | 0.3671 | 934.7 | 367.5 | |
| 0.00 | 1.88 | 0.00 | 0.98 | -20.24 | 65.88 | 12.87 | 221.40 | 0.3174 | -906.0 | -591.0 | |
| 0.00 | 1.88 | 0.00 | 0.98 | -20.36 | 64.70 | 11.68 | 218.51 | 0.3062 | -978.0 | -803.2 | |
| 0.00 | 1.20 | 0.00 | 0.62 | -20.76 | 64.53 | 11.52 | 217.29 | 0.3096 | -806.0 | -679.6 | |
| 0.00 | 0.51 | 0.00 | 0.27 | -20.80 | 64.21 | 11.20 | 216.46 | 0.3069 | -782.0 | -585.0 | |
| 0.00 | 1.45 | 0.00 | 0.75 | -20.61 | 63.01 | 10.00 | 213.86 | 0.2929 | -1013.0 | -832.4 | |
| 0.00 | 1.28 | 0.00 | 0.66 | -21.12 | 59.87 | 6.86 | 204.02 | 0.2748 | -880.0 | -722.9 | |
| 0.00 | 1.45 | 0.00 | 0.75 | -21.24 | 59.65 | 6.64 | 203.16 | 0.2753 | -914.0 | -765.9 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |